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CVE-2022-49044· NVD / CVE Program· CNA Linux

dm integrity: fix memory corruption when tag_size is less than digest size

Noroxi assessment

Priority: Monitor (action score 31/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.28% (FIRST EPSS).
  • Someone with local access to the system can trigger it. A low-privileged account is enough. No user action is required. No special conditions are required; it is repeatable.
  • Fixed version: Linux Linux 08c1af8f1c13bbf210f1760132f4df24d0ed46d6, 4d485cf9b609709e45d5113e6e2b1b01254b2fe9, 6a95d91c0b315c965198f6ab7dec7c94129e17e0.

Low priority for now. Upgrade to Linux Linux 08c1af8f1c13bbf210f1760132f4df24d0ed46d6, 4d485cf9b609709e45d5113e6e2b1b01254b2fe9, 6a95d91c0b315c965198f6ab7dec7c94129e17e0 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

In the Linux kernel, the following vulnerability has been resolved: dm integrity: fix memory corruption when tag_size is less than digest size It is possible to set up dm-integrity in such a way that the "tag_size" parameter is less than the actual digest size. In this situation, a part of the digest beyond tag_size is ignored. In this case, dm-integrity would write beyond the end of the ic->recalc_tags array and corrupt memory. The corruption happened in integrity_recalc->integrity_sector_checksum->crypto_shash_final. Fix this corruption by increasing the tags array so that it has enough padding at the end to accomodate the loop in integrity_recalc() being able to write a full digest size for the last member of the tags array.

HighCVSS 7.8 · v3.1—No exploit Fix available
Published
Feb 26, 2025
Updated
Aug 12, 2026
EPSS
0.3% · 19th percentile

Report tools

JSON

Action score

31

Monitor

Low priority for now.

CVSS
31 / 40 · 7.8 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.3%

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2022-49044

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
linuxlinux kernel

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • linux linux kernel4.12 and later · before 4.19.240
  • linux linux kernel4.20 and later · before 5.4.190
  • linux linux kernel5.5 and later · before 5.10.112
  • linux linux kernel5.11 and later · before 5.15.35
  • linux linux kernel5.16 and later · before 5.17.4
  • linux linux kernel5.18

Versions reported by the vendor

Affected version ranges reported by the assigning authority (Linux). Independent of NVD's CPE analysis and usually ahead of it.

  • Linux Linux

    • 4.19affected
    • a3fcf7253139609bf9ff901fbf955fba047e75dd and later · before 6a95d91c0b315c965198f6ab7dec7c94129e17e0affected · git
    • a3fcf7253139609bf9ff901fbf955fba047e75dd and later · before 7f84c937222944c03f4615ca4742df6bed0e5adfaffected · git
    • a3fcf7253139609bf9ff901fbf955fba047e75dd and later · before cd02b2687d66f0a8e716384de4b9a0671331f1dcaffected · git
    • a3fcf7253139609bf9ff901fbf955fba047e75dd and later · before 6b4bf97587ef6c1927a78934b700204920655123affected · git
    • a3fcf7253139609bf9ff901fbf955fba047e75dd and later · before 4d485cf9b609709e45d5113e6e2b1b01254b2fe9affected · git
    • a3fcf7253139609bf9ff901fbf955fba047e75dd and later · before 08c1af8f1c13bbf210f1760132f4df24d0ed46d6affected · git
    • before 4.19not affected · semver
    • 4.19.240 and later · up to and including 4.19.*not affected · semver
    • 5.4.190 and later · up to and including 5.4.*not affected · semver

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 5.17.6-15.17.6-1
Red Hat:enterprise_linux:8::baseosbpftoolbefore 0:4.18.0-372.16.1.el8_60:4.18.0-372.16.1.el8_6
Red Hat:enterprise_linux:8::baseoskernelbefore 0:4.18.0-372.16.1.el8_60:4.18.0-372.16.1.el8_6
Red Hat:enterprise_linux:8::baseoskernel-abi-stablelistsbefore 0:4.18.0-372.16.1.el8_60:4.18.0-372.16.1.el8_6
Red Hat:enterprise_linux:8::baseoskernel-corebefore 0:4.18.0-372.16.1.el8_60:4.18.0-372.16.1.el8_6
Red Hat:enterprise_linux:8::baseoskernel-debugbefore 0:4.18.0-372.16.1.el8_60:4.18.0-372.16.1.el8_6
Red Hat:enterprise_linux:8::baseoskernel-debug-corebefore 0:4.18.0-372.16.1.el8_60:4.18.0-372.16.1.el8_6
Red Hat:enterprise_linux:8::baseoskernel-debug-develbefore 0:4.18.0-372.16.1.el8_60:4.18.0-372.16.1.el8_6
Red Hat:enterprise_linux:8::baseoskernel-debug-modulesbefore 0:4.18.0-372.16.1.el8_60:4.18.0-372.16.1.el8_6
Red Hat:enterprise_linux:8::baseoskernel-debug-modules-extrabefore 0:4.18.0-372.16.1.el8_60:4.18.0-372.16.1.el8_6
Red Hat:enterprise_linux:8::baseoskernel-debuginfo-common-aarch64before 0:4.18.0-372.16.1.el8_60:4.18.0-372.16.1.el8_6
Red Hat:enterprise_linux:8::baseoskernel-debuginfo-common-ppc64lebefore 0:4.18.0-372.16.1.el8_60:4.18.0-372.16.1.el8_6
Red Hat:enterprise_linux:8::baseoskernel-debuginfo-common-s390xbefore 0:4.18.0-372.16.1.el8_60:4.18.0-372.16.1.el8_6
Red Hat:enterprise_linux:8::baseoskernel-docbefore 0:4.18.0-372.16.1.el8_60:4.18.0-372.16.1.el8_6
Red Hat:enterprise_linux:8::baseoskernel-modulesbefore 0:4.18.0-372.16.1.el8_60:4.18.0-372.16.1.el8_6
Red Hat:enterprise_linux:8::baseoskernel-modules-extrabefore 0:4.18.0-372.16.1.el8_60:4.18.0-372.16.1.el8_6
Red Hat:enterprise_linux:8::baseoskernel-toolsbefore 0:4.18.0-372.16.1.el8_60:4.18.0-372.16.1.el8_6
Red Hat:enterprise_linux:8::baseoskernel-tools-libsbefore 0:4.18.0-372.16.1.el8_60:4.18.0-372.16.1.el8_6
Red Hat:enterprise_linux:8::baseoskernel-zfcpdumpbefore 0:4.18.0-372.16.1.el8_60:4.18.0-372.16.1.el8_6
Red Hat:enterprise_linux:8::baseoskernel-zfcpdump-corebefore 0:4.18.0-372.16.1.el8_60:4.18.0-372.16.1.el8_6
Red Hat:enterprise_linux:8::baseoskernel-zfcpdump-debuginfobefore 0:4.18.0-372.16.1.el8_60:4.18.0-372.16.1.el8_6
Red Hat:enterprise_linux:8::baseoskernel-zfcpdump-develbefore 0:4.18.0-372.16.1.el8_60:4.18.0-372.16.1.el8_6
Red Hat:enterprise_linux:8::baseoskernel-zfcpdump-modulesbefore 0:4.18.0-372.16.1.el8_60:4.18.0-372.16.1.el8_6
Red Hat:enterprise_linux:8::baseoskernel-zfcpdump-modules-extrabefore 0:4.18.0-372.16.1.el8_60:4.18.0-372.16.1.el8_6

+64

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  • CVE-2016-5195Race condition in mm/gup.c in the Linux kernel 2.x through 4.x before 4.8.3 allows local users to gain privileges by leveraging incorrect haKEV
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  • CVE-2019-13272In the Linux kernel before 5.1.17, ptrace_link in kernel/ptrace.c mishandles the recording of the credentials of a process that wants to creKEV
    77This week
  • CVE-2013-6282The (1) get_user and (2) put_user API functions in the Linux kernel before 3.5.5 on the v6k and v7 ARM platforms do not validate certain addKEV
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Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
Linux Linux08c1af8f1c13bbf210f1760132f4df24d0ed46d6Vendor (CNA)
Linux Linux4d485cf9b609709e45d5113e6e2b1b01254b2fe9Vendor (CNA)
Linux Linux6a95d91c0b315c965198f6ab7dec7c94129e17e0Vendor (CNA)
Linux Linux6b4bf97587ef6c1927a78934b700204920655123Vendor (CNA)
Linux Linux7f84c937222944c03f4615ca4742df6bed0e5adfVendor (CNA)
Linux Linuxcd02b2687d66f0a8e716384de4b9a0671331f1dcVendor (CNA)
debian:linux5.17.6-1 · Debian:12Package registry (OSV)
red hat:bpftool-debuginfo0:5.14.0-70.17.1.el9_0 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:kernel-debug-debuginfo0:5.14.0-70.17.1.el9_0 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:kernel-debug-devel0:5.14.0-70.17.1.el9_0 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:kernel-debug-devel-matched0:5.14.0-70.17.1.el9_0 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:kernel-debuginfo0:5.14.0-70.17.1.el9_0 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:kernel-debuginfo-common-aarch640:5.14.0-70.17.1.el9_0 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:kernel-debuginfo-common-ppc64le0:5.14.0-70.17.1.el9_0 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:kernel-debuginfo-common-s390x0:5.14.0-70.17.1.el9_0 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:kernel-debuginfo-common-x86_640:5.14.0-70.17.1.el9_0 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:kernel-devel0:5.14.0-70.17.1.el9_0 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:kernel-devel-matched0:5.14.0-70.17.1.el9_0 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:kernel-doc0:5.14.0-70.17.1.el9_0 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
suse:kernel-64kb5.3.18-150300.59.201.1 · SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSSPackage registry (OSV)
suse:kernel-default4.12.14-122.258.1 · SUSE:Linux Enterprise Live Patching 12 SP5Package registry (OSV)
suse:kernel-default-base5.3.18-150300.59.201.1.150300.18.120.1 · SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSSPackage registry (OSV)
suse:kernel-docs5.3.18-150300.59.201.1 · SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSSPackage registry (OSV)
suse:kernel-livepatch-SLE15-SP3_Update_561-150300.7.3.1 · SUSE:Linux Enterprise Live Patching 15 SP3Package registry (OSV)
suse:kernel-obs-build5.3.18-150300.59.201.1 · SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSSPackage registry (OSV)
suse:kernel-preempt5.3.18-150300.59.201.1 · SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSSPackage registry (OSV)
suse:kernel-rt5.3.18-150300.205.1 · SUSE:Linux Enterprise Micro 5.1Package registry (OSV)
suse:kernel-source4.12.14-122.258.1 · SUSE:Linux Enterprise Server 12 SP5-LTSSPackage registry (OSV)
suse:kernel-source-rt5.3.18-150300.205.1 · SUSE:Linux Enterprise Micro 5.1Package registry (OSV)
suse:kernel-syms4.12.14-122.258.1 · SUSE:Linux Enterprise Server 12 SP5-LTSSPackage registry (OSV)

+1

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Someone with local access to the system can trigger it.
  • A low-privileged account is enough.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Local
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

CWE-787 · Out-of-bounds Write

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

All records